Which thin-walled blood vessels lack muscular walls?

Veins
Arterioles
Capillaries
Arteries

Which blood vessel does not carry oxygen rich blood?

Pulmonary vein
Pulmonary artery
Capillaries
Arteriole

How do arteries differ in structure from capillaries and veins?

Arteries have more elastin in tissue than veins and capillaries.
Arteries appear flatter in a cross section than veins and capillaries.
Arteries have valves which are absent in veins and capillaries.
Arteries have walls that are thinner than veins and capillaries.

1infants internalize what they take in through their senses and                a.  show no signs of remembering it.      b.  vocalize it.      c.  display it in physical movements.      d.  forget it immediately.2 early experiences have a impact on the architecture of the brain.                a.  decisive      b.  mild      c.  minimal      d.  moderate  3which of the following is an infant's main learning tool in the first months after birth?                 a.  mouth      b.  music      c.  book exposure      d.  hands

Frankie is having difficulty developing a friendship with histeammate curtis. whenever frankie invites curtis to hangout with him at the park, curtis always says that he's busy.what is most likely preventing a healthy relationship fromforming? a)the boys are not being generous with their time andeffort.b)the boys are not communicating.c)both boys are too busy.d)the boys are on different teams.

Which type of health involves how people get along with others in their workplaces? physical mental and emotional social and consumer environmental which type of health is demonstrated when a person makes healthy food choices? spiritual environmental social and consumer physical which type of health is demonstrated when a person has satisfying relationships? social physical environmental spiritual